ID
1232510
$ 70.87
1-2 weeks delivery time
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The ZF 3306304026 Cup Spring is a disc spring for ZF12M and ZF15M marine transmissions. Made from 50CrV4 alloy steel with zinc-phosphate coating. Dimensions: 50×25×2.5 mm. Working load: up to 1,500 N. Temp range: -40°C to +200°C. DIN 2093 compliant, resists fatigue and corrosion under high-load marine conditions.
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ZF 3306304026 - Cup Spring 50×25×2.5 mm for ZF12M / ZF15M Marine Transmissions
The ZF 3306304026 Cup Spring is a high-performance disc spring engineered to support axial load control in marine propulsion systems. Designed specifically for ZF12M and ZF15M transmissions, it improves gear engagement stability and reduces mechanical stress under demanding conditions. Made from high-strength spring steel (50CrV4) with a corrosion-resistant zinc-phosphate coating, this spring maintains its mechanical integrity across wide temperature and pressure ranges. Manufactured in compliance with DIN 2093 and ISO 9001 standards, it offers long-lasting durability, fatigue resistance, and precise load handling for reliable operation in saltwater and freshwater environments.
Key Features
- Disc spring (cup spring) designed for ZF12M and ZF15M marine transmissions
- Optimized to absorb axial forces and distribute loads evenly
- Made of high-strength 50CrV4 alloy spring steel
- Zinc-phosphate coating ensures long-term corrosion protection
- Working load up to 1,500 N with excellent fatigue resistance
- Withstands extreme temperatures and marine conditions
- Precision manufactured to DIN 2093 standards
- Direct OEM fit for efficient installation and reliable operation
Specifications
Part Number ZF 3306304026 Type Cup Spring / Disc Spring Application ZF12M, ZF15M Marine Transmissions Material 50CrV4 High-Strength Alloy Steel Outer Diameter 50 mm Inner Diameter 25 mm Thickness 2.5 mm Working Load Up to 1,500 N Spring Deflection 0.3 mm under nominal load Max Compression 75% of total height Operating Temp. Range -40°C to +200°C Surface Treatment Zinc-phosphate coating Modulus of Elasticity 206,000 MPa Tensile Strength 1,600 MPa Friction Coefficient 0.1–0.2 (depending on lubrication) Weight 120 g Compliance DIN 2093, ISO 9001 Manufacturing Precision stamping & heat-treated Fatigue Resistance High – for continuous load cycles
Compatibility and Application
The ZF 3306304026 Cup Spring is compatible with ZF12M and ZF15M marine transmission models. It plays a crucial role in maintaining mechanical stability by evenly distributing axial loads and supporting smooth gear engagement. Thanks to its corrosion-resistant surface treatment and robust spring steel construction, it performs reliably in both saltwater and freshwater conditions. The spring is an OEM-grade replacement part designed for seamless integration and long-term durability in marine environments.
Benefits
- Improves gear engagement and load response in ZF marine transmissions
- Reduces mechanical stress and prevents premature wear
- Engineered to resist corrosion, fatigue, and thermal stress
- Easy to install – direct OEM fitment for ZF12M / ZF15M units
- Supports high-frequency load cycles without material degradation
- Precision manufacturing ensures consistent performance
- Optimized for marine propulsion systems under dynamic loads
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